A sanitary napkin adapted to be worn in a thong undergarment, the sanitary napkin having a central absorbent pad including a liquid pervious cover layer, a liquid impervious barrier layer and an absorbent core between the cover layer and barrier layer and a pair of flaps extending laterally outward from each longitudinal side edge including a first flap being substantially adjacent the lateral centerline, the first flap being adapted to fold over a crotch portion of the thong undergarment in use along a first preferential bending axis and to contact the garment faceable surface of the thong undergarment, and a second flap being intermediate the first flap and the first distal end, the second flap being adapted to fold over the posterior portion of the thong undergarment in use along a second preferential bending axis and to contact the garment faceable surface of the thong undergarment The first flap is separated from the second flap by a flange portion, the flange portion having a lateral dimension that is insufficient to allow the flange portion to be folded over an edge of the thong undergarment or to contact the garment faceable surface thereof in use. The first preferential bending axis is substantially collinear with the second preferential bending axis within the flange portion.
